Active Inertia Compensation for On-Board Damping During Sudden Turns
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Solution Overview
Problem
Current vehicle suspension systems fail to effectively mitigate the adverse effects of inertia forces on passengers and transported objects during sudden turns, leading to discomfort and potential injuries due to the 'feeling of being thrown' and collisions with vehicle doors.
Innovation Solution
An active compensation algorithm for inertia forces, which includes acquiring a real-time compensation angle using sensor fusion and wavelet neural networks, and adjusting a damping motor's angle via a PI control algorithm to counteract inertia forces, along with a damping device comprising rotating assemblies for roll and pitch motions to stabilize the damped target.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a vehicle suspension system is used to attenuate vibrations, then comfort on up and down pavements is improved, but the adverse effect caused by sudden turning of vehicles cannot be overcome
Solution Approach 1:
The damping device transitions from a static suspension system to a dynamic active control system. The damping coefficient is adjusted in real-time based on vehicle motion state (sudden turn detection), allowing the system to adapt its characteristics dynamically. When sudden turn is detected, the damping coefficient is increased to restrain relative motion between the damping target and vehicle body, thereby resolving the contradiction between comfort and sudden turn handling capability.
2Device complexity
If no active compensation is provided, then the structure remains simple, but passengers experience feeling of being thrown away and may be injured during sudden turns
Solution Approach 1:
The system detects sudden turn motion in advance and proactively adjusts the damping coefficient before significant inertial effects harm passengers. By detecting the motion state and pre-adjusting the damping characteristics, the system counteracts the harmful inertia forces before they can cause discomfort or injury, thereby resolving the contradiction between structural simplicity and passenger safety.
3Device complexity
If the damping coefficient is fixed, then the device structure is simple, but it cannot adapt to different motion states such as sudden turns
Solution Approach 1:
The damping coefficient transitions from a fixed value to a dynamically adjustable parameter based on vehicle motion state. A detection mechanism identifies sudden turn conditions, and a control system adjusts the damping coefficient accordingly - increasing it during sudden turns to restrain relative motion, and maintaining lower values during normal operation for comfort. This dynamic adjustment resolves the contradiction between structural simplicity and adaptability to different motion states.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution significantly reduces passenger discomfort and injury risks by actively compensating for inertia forces during turns, enhancing riding comfort and safety by maintaining stability and minimizing collisions.
Implementation Method 1
calculating the expected real-time inertia force compensation angle of the damped target by a sensor fusion algorithm when the vehicle takes a sudden turn based on the velocity information, the acceleration information, and the angular velocity information of the vehicle chassis
Implementation Method 2
adjusting an angle of a damping motor by adopting a proportional integral (PI) control algorithm according to the real-time inertia force compensation angle, wherein the damping motor keeps pace with the expected inertia force compensation angle in real time
Implementation Method 3
an active compensation algorithm for an inertia force of on-board equipment and a damping device... actively compensating for inertia forces during turns, enhancing riding comfort and safety by maintaining stability
Data Source
AI summary
An active compensation algorithm for an inertia force of on-board equipment and a damping device are provided. The algorithm includes the following steps: a compensation angle acquisition step: acquiring an expected real-time inertia force compensation angle of a damped target when a vehicle takes a sudden turn or emergency braking based on velocity information, acceleration information, and angular velocity information of a vehicle chassis; and a control step: adjusting an angle of a damping motor by adopting a control algorithm according to the real-time inertia force compensation angle, where the damping motor keeps pace with the expected inertia force compensation angle in real time. The active compensation algorithm for the inertia force of on-board equipment can calculate the inertia force compensation angle of the vehicle in real time, so as to achieve a better inertia force compensation function to the damped target through the damping motor.